Cited by 363Genomics and Chromatin DynamicsSingle-cell and spatial transcriptomicsDevelopmental Biology and Gene Regulation

The cis-regulatory dynamics of embryonic development at single-cell resolution

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Cusanovich, Darren A., Reddington, James P., Garfield, David A., Daza, Riza M., Aghamirzaie, Delasa, Marco-Ferreres, Raquel, Pliner, Hannah A., Christiansen, Lena +5 more·2018·Nature

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Abstract

Understanding how gene regulatory networks control the progressive restriction of cell fates is a long-standing challenge. Recent advances in measuring gene expression in single cells are providing new insights into lineage commitment. However, the regulatory events underlying these changes remain unclear. Here we investigate the dynamics of chromatin regulatory landscapes during embryogenesis at single-cell resolution. Using single-cell combinatorial indexing assay for transposase accessible chromatin with sequencing (sci-ATAC-seq), we profiled chromatin accessibility in over 20,000 single nuclei from fixed Drosophila melanogaster embryos spanning three landmark embryonic stages: 2-4 h after egg laying (predominantly stage 5 blastoderm nuclei), when each embryo comprises around 6,000 multipotent cells; 6-8 h after egg laying (predominantly stage 10-11), to capture a midpoint in embryonic development when major lineages in the mesoderm and ectoderm are specified; and 10-12 h after egg laying (predominantly stage 13), when each of the embryo's more than 20,000 cells are undergoing terminal differentiation. Our results show that there is spatial heterogeneity in the accessibility of the regulatory genome before gastrulation, a feature that aligns with future cell fate, and that nuclei can be temporally ordered along developmental trajectories. During mid-embryogenesis, tissue granularity emerges such that individual cell types can be inferred by their chromatin accessibility while maintaining a signature of their germ layer of origin. Analysis of the data reveals overlapping usage of regulatory elements between cells of the endoderm and non-myogenic mesoderm, suggesting a common developmental program that is reminiscent of the mesendoderm lineage in other species. We identify 30,075 distal regulatory elements that exhibit tissue-specific accessibility. We validated the germ-layer specificity of a subset of these predicted enhancers in transgenic embryos, achieving an accuracy of 90%. Overall, our results demonstrate the power of shotgun single-cell profiling of embryos to resolve dynamic changes in the chromatin landscape during development, and to uncover the cis-regulatory programs of metazoan germ layers and cell types.

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  • In Drosophila, approximately 70-90% of accessible regions are active enhancers when their accessibility is cell type specific.

    “In Drosophila, different studies have reported that ~70-90% of accessible regions are active enhancers, when their accessibility is cell type specific10–12”

    From Enhancer grammar of liver cell types and hepatocyte zonation states (2022) · cites this paper as [10]

    The results passage labeled Abstract reports that 29 of 31 tested clade-specific, promoter-distal accessible regions (94%) functioned as developmental enhancers in Drosophila embryos. This supports the association between cell-type-specific accessibility and enhancer activity, but the reported rate is 94%, not approximately 70–90%, and it comes from a selected set of 31 regions rather than all accessible regions. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Single-cell ATAC-seq has enabled in vivo profiling of accessible chromatin at the scale of a whole organism.

    “For example, single-cell ATAC-seq has enabled the in vivo profiling of accessible chromatin at the scale of a whole organism82,83.160,161.”
  • ATAC-seq can be performed in single cells, revealing cell-to-cell variability and rare epigenomic phenotypes.

    “Importantly, ATAC-seq can be performed in single cells (scATAC-seq), uncovering cell-to-cell variability and rare epigenomic phenotypes (Cusanovich et al., 2018; Satpathy et al., 2018; Buenrostro et al., 2018).”

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Authors
Cusanovich, D. A., Reddington, J. P., Garfield, D. A., Daza, R. M., Aghamirzaie, D., Marco-Ferreres, R., Pliner, H. A., Christiansen, L., Qiu, X., Steemers, F. J., Trapnell, C., Shendure, J., & Furlong, E. E. M.
Affiliations
  • University of Washington (US)
  • European Molecular Biology Laboratory (DE)
  • Illumina (United States) (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
  • Shendure, Jay
  • Furlong, Eileen E. M.
Venue
Nature
Published
2018-03
Volume
555
Issue
7697
Pages
538-542
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2736547131
Cited by
363
References
64
Citations by year
2026: 21 · 2025: 23 · 2024: 32 · 2023: 32 · 2022: 61 · 2021: 45 · 2020: 71 · 2019: 49 · 2018: 29
FWCI
17.52
Type
journal article
Language
en
Open access
Licence
Locations
  • Nature (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Heart, Lung, and Blood Institute (T32HL007828)
  • National Human Genome Research Institute (DP1HG007811, R01HG006283)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
chromatin accessibility, cis-regulatory elements, single-cell chromatin accessibility, cell fate specification, mesoderm, endoderm, ectoderm, developmental trajectories, cell lineage, transcriptional regulation, blastoderm, terminal differentiation, germ layers, cell type annotation, spatial heterogeneity
MeSH terms
Animals, Cell Differentiation, Chromatin, Drosophila melanogaster, Endoderm, Enhancer Elements, Genetic, Female, Male, Mesoderm, Organ Specificity, Reproducibility of Results, Gene Expression Regulation, Developmental, Cell Lineage, Organisms, Genetically Modified, Embryonic Development, Genome, Insect, Gastrulation, Single-Cell Analysis

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